Model # 162848

Internet #100003351

GREAT STUFF 16 oz. Gaps and Cracks Insulating Foam Sealant
0074985004568

Discontinued GREAT STUFF

16 oz. Gaps and Cracks Insulating Foam Sealant

  • Air-sealing and insulating saves up to 20% on home energy costs
  • A quick, simple way to create an airtight, water-resistant seal
  • 16 oz. Gaps and Cracks Insulating Foam Sealant

Frequently Bought Together

Product Overview

GREAT STUFF Gaps and Cracks is a polyurethane-based insulating foam sealant that fills, air-seals and insulates small gaps (Up to 1 in.) inside or out. But you probably guessed as much from the name. What you might not have guessed is how easy it is to use, thanks to the straw applicator, or how it expands to take the shape of cracks and voids to form a durable, airtight and water-resistant bond that eliminates unwanted airflow and helps reduce condensation.

  • Forms a permanent weather-tight seal to minimize drafts and insect infestation and has exceptional adhesion to building materials
  • GREAT STUFF gaps and cracks can be used in interior or exterior application and is tack free in 15 minutes; trims in 30-60 minutes
  • Cures as a cream colored, rigid foam
  • One 16 oz. can equals up to 30 tubes (9 Qt.) of caulk
  • Foam elasticity properties allow for movement and shifting within a structure
  • Paintable, sandable and stainable

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Customer Questions & Answers

110 Questions304 Answers

Customer Questions & Answers

16 oz. Gaps and Cracks Insulating Foam Sealant
16 oz. Gaps and Cracks Insulating Foam Sealant

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7 answers

can this product be used to seal around an electric dryer vent?

This question is from 16 oz. Gaps and Cracks Insulating Foam Sealant
Asked by
daytona beach, fl
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November 28, 2013
I am concerned about the temperature and possible flamability
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Answers (7)

Asked by
Palmyra, WI
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Home Improvement Profile: DIYer
September 14, 2016
Answer: 
I used it about 14 years ago to seal up around my gas dryer vent. Just last month while remodeling the basement, I had to chip the old Great Stuff from around the vent in order to re-align the elbow for the new drier location. It wasn't super hard to remove the foam, but it took some work and I was impressed with how well it had held up over the years. Once the dryer and the new vent piping was in place, Read More
I used it about 14 years ago to seal up around my gas dryer vent. Just last month while remodeling the basement, I had to chip the old Great Stuff from around the vent in order to re-align the elbow for the new drier location. It wasn't super hard to remove the foam, but it took some work and I was impressed with how well it had held up over the years. Once the dryer and the new vent piping was in place, I used two cans to seal up around it and lock the elbow and joint into position. Read Less
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Asked by
Edgewood, Maryland
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Home Improvement Profile: Professional
January 23, 2014
Answer: 
Yes, I've used it for that and it does a good job. I was an electrical contractor and I have used it for sealing holes above and below ground and have never had a problem. Also if you get some of it on your skin, use WD40, before it dries, to remove it.
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Asked by
Cincinnati, OH
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Home Improvement Profile: DIYer
January 23, 2014
Answer: 
yes. your dryer vent would never get hot enough to cause a problem for the sealant.
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Asked by
SW Michigan
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January 21, 2014
Answer: 
I personally would not use this sealant in an area that would experience high temperature like a dryer vent.
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Asked by
Centennial, CO.
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January 10, 2014
Answer: 
I would not use this. Is says it is flammable. Use chalk or insulation packed in the gap.
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Asked by
East Millinocket, Me
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December 17, 2013
Answer: 
Yes, pipes and wires as well. Dow website has videos. Do not use near flame when
installing, likely the propellent is flameable, but I have not had any issues, it works well
on hot water pipes. It dries hard and takes a saw to remove, so do not over use, if you
apply large amounts, it will expand and could damage a thin vent line. You should also
pickup the 30 packs of cleaning wipes, the wipes clean
Read More
Yes, pipes and wires as well. Dow website has videos. Do not use near flame when
installing, likely the propellent is flameable, but I have not had any issues, it works well
on hot water pipes. It dries hard and takes a saw to remove, so do not over use, if you
apply large amounts, it will expand and could damage a thin vent line. You should also
pickup the 30 packs of cleaning wipes, the wipes clean most sticky products, but can be
used to clean the area when finished, about $3 for 30, great for cleaning tube and tools.
Read Less
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Home Improvement Profile: Other
December 2, 2013
Answer: 
GREAT STUFF (TM) Insulating Foam Sealant products should not be used around heaters, furnaces, fireplaces, or recessed lighting fixtures where it contacts heat conducting surfaces. Cured foam is combustible and may present a fire hazard if exposed to flame or temperatures above 240F. If the application area does not meet or exceed these, you can use the product.
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7 answers

Is this the correct product to fill in stucco cracks?

This question is from 16 oz. Gaps and Cracks Insulating Foam Sealant
Asked by
Cajy
Anthem, Arizona
August 30, 2013
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Asked by
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November 14, 2015
Answer: 
No. Use a good quality stucco patch made by Rapid Set, available at Home Depot. I've done it myself. You can watch a good demo of this on You Tube.
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Asked by
SW Michigan
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January 21, 2014
Answer: 
I would avoid using this sealant in external location where it would be exposed to the sun and rain. I use silicon-based caulk for filling in cracks in stucco providing the cracks don't exceed 1/2". A metal or vinyl mesh can be added to wider/deeper cracks prior to applying caulk for best results. Often you can get caulk in a color that will closely match the stucco finish improving the appearance and Read More
I would avoid using this sealant in external location where it would be exposed to the sun and rain. I use silicon-based caulk for filling in cracks in stucco providing the cracks don't exceed 1/2". A metal or vinyl mesh can be added to wider/deeper cracks prior to applying caulk for best results. Often you can get caulk in a color that will closely match the stucco finish improving the appearance and durability of your stucco repair. Read Less
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Asked by
East Millinocket, Me
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December 17, 2013
Answer: 
It will work, get the wipes to cleanup after use, wear gloves and you may be able to use
a paper towel to pull the foam to match the stucco. I is like whipped cream, so when can is started, spray in a newspaper to get the tube filled and press lightly to get a small amount out at a time.
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Asked by
Texas, USA
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Home Improvement Profile: DIYer
November 11, 2013
Answer: 
Yes, and then I would cut off the excess with a knife or razor to make it flush with the stucco, caulk over it and then paint it to match.
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Asked by
ohio
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October 22, 2013
Answer: 
No, it would expand much more than you want. You need a good caulk, I think
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Asked by
seangautier
usa
October 8, 2013
Answer: 
it will work however the stucco may not adhere to wall and break because the solution is too strong and does not make other objects stick to it.
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September 3, 2013
Answer: 
GREAT STUFF™ Gaps & Cracks is a minimal expansion polyurethane insulating foam sealant that fills, seals and insulates gaps up to 1 inch. GREAT STUFF™ products can be used outdoors. However, cured foam will discolor if exposed to ultraviolet (UV) light. If left exposed, the foam will eventually crumble. Paint or coat foam for best results in outdoor applications.
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7 answers

Is the foam yellow or white? I'm looking to use it for a craft project :)

This question is from 16 oz. Gaps and Cracks Insulating Foam Sealant
Asked by
MikesWife
NJ
August 12, 2013
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Answers (7)

Asked by
Gates , ny (taxville)
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Home Improvement Profile: DIYer
November 11, 2014
Answer: 
Try DAP expanding if you are looking for white BUT it doesn't add up to quality of Great Stuff.
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Asked by
Centennial, CO.
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January 10, 2014
Answer: 
Light brown.
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Asked by
East Millinocket, Me
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December 17, 2013
Answer: 
bright white, get the wipes and wear gloves, it is sticky and works like whipped cream, so you
can not mold by hand, but you can spray a large amount, the next day, you can cut with a fine hacksaw for rigid crafts.
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Asked by
Texas, USA
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Home Improvement Profile: DIYer
November 11, 2013
Answer: 
It dries tan in color, but turns yellow over time. If you sand it down and then putty over the top, it can be painted though.
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Asked by
seangautier
usa
October 8, 2013
Answer: 
yellow
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August 27, 2013
Answer: 
The only colors that GREAT STUFF(TM) Comes in would be the following:
GREAT STUFF™ Gaps & Cracks, GREAT STUFF™ Big Gap Filler and GREAT STUFF Pestblock™ are all cream color.
GREAT STUFF™ Window & Door is yellow.
GREAT STUFF™ FIREBLOCK is Orange.
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Asked by
Creative Mom
Houston, TX, USA
August 12, 2013
Answer: 
Certainly it is not white but I wouldn't call it yellow, either. Antique white or slightly darker is a closer representation. But after drying, it is sandable and paintable.
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6 answers

how to get a new tube?

This question is from 16 oz. Gaps and Cracks Insulating Foam Sealant
Asked by
alex808
June 2, 2013
hi i used this and it works however i cannot use again without a new tube. Do i have to buy a new tube or how to clean the existing tube?
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Answers (6)

Asked by
Read all my Q&A
January 1, 2016
Answer: 
I clean the tube with acetone or fingernail polish remover. If the foam has dried let it soak a bit in a tray. You might have to use a thin wire to pull out the foam from tube after soaking. It becomes tacky and will eventually dissolve.
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Asked by
SW Michigan
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January 21, 2014
Answer: 
To re-use a tube, you can set aside the tube you want to save and let it dry thoroughly. After drying, you can insert a stiff wire (like a coat hanger) and push the dried sealant out of the tube to allow you to use this tube again.
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Asked by
Centennial, CO.
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January 10, 2014
Answer: 
You are out of luck. They make this stuff to be used one time. It make the company that makes this alot more money.
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Asked by
East Millinocket, Me
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December 17, 2013
Answer: 
It is a one time use product and you should plan to use it all at once, you get 5 minutes from the stop before the tube hardens. Some people have had luck with cleaning the tube outside and ends with wipes, after dry run a wire and push the dry foam out. A few reports that you take the top off and pour acetone - nail polish remover in the top of the can, but that does not always work. Dow does not Read More
It is a one time use product and you should plan to use it all at once, you get 5 minutes from the stop before the tube hardens. Some people have had luck with cleaning the tube outside and ends with wipes, after dry run a wire and push the dry foam out. A few reports that you take the top off and pour acetone - nail polish remover in the top of the can, but that does not always work. Dow does not recomment reusing the tube or cans after finished for more than 15 minutes. They do not sell extra tubes, would be a nice idea, but if you break a tube, plan ahead, use the tube from the next can and
when finished the first can, use the old tube on the next can, you have about 5 minutes to make the change and have the next can work.
Read Less
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Asked by
Texas, USA
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Home Improvement Profile: DIYer
November 11, 2013
Answer: 
Why? Just clean the old one with a coat hanger. Even if the foam has dried, the coat hanger can be used like a "drill" and does a great job at digging the foam out of the nozzle.
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June 7, 2013
Answer: 
GREAT STUFF (TM) polyurethane foam sealant products are one-component foams and do not lend themselves to re-use. Once a can has been used and allowed to sit, it will seal itself shut. One time use should be expected.
To prolong the use of a can: before starting your project, have a long nail or pipe cleaner with some WD40 handy. Once you are done using the product, saturate the long nail or pipe cleaner
Read More
GREAT STUFF (TM) polyurethane foam sealant products are one-component foams and do not lend themselves to re-use. Once a can has been used and allowed to sit, it will seal itself shut. One time use should be expected.
To prolong the use of a can: before starting your project, have a long nail or pipe cleaner with some WD40 handy. Once you are done using the product, saturate the long nail or pipe cleaner with the WD40 and slide that into the straw applicator. Leave the straw attached to the can and store it upright. That can may then restart for you for up to 30 days.
Read Less
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Customer Reviews

Rated 3.9 out of 5 by 208 reviewers.
Rated 1.0 out of 5.0 by New "anti drip" valve is not all that I've used hundreds of cans of Great Stuff and have always been happy with the results more or less, but they have introduced a new "anti drip" feature to the delivery straw that does the opposite of what it was intended. There are no instructions on the cap where the new feature is proclaimed, but apparently you need to pull the end of the straw to open the valve. Otherwise, the pressure builds inside the straw and at the slightest movement the straw un-threads from the can and there is a miniature explosion of foam at the top of the can you need to clean up, in my case off of my face since I had tucked my head neatly between the gas line and the water line in the joists of my basement ceiling. September 14, 2016
Rated 2.0 out of 5.0 by Ugh! Not Worth It I had hoped to have success using Great Stuff to seal a 3" deep by 1/4" wide crack between rigid foam and studs. The reality is the spray sputters out making it very difficult to apply in any controlled manner. You would think it would work reasonably well. But frankly between an inconsistent application, spotty seal, the mess it creates, and the disappointing coverage, Great Stuff is not worth it. An 8oz can did uneven job of about 18' of crack before sputtering empty. For those thinking they can create a seal between rigid foam and studs I would strongly recommend cutting the foam a 1/16" over size and use a mallet to fit it in tightly. Use another manageable sealant if you need. September 17, 2016
Rated 5.0 out of 5.0 by It is Great Stuff Used for sealing around a basement exterior door. Read from other treads that you can save the can and applicator straw by cleaning out. When done, immediately remove straw and spray with WD40 to dissolve the foam in tube and trigger. Then use compressed air like the canned air for your computer to blow the straw and trigger clean. On to the can, pull out whatever foam is coming out and spray WD40 into the nozzle, then hit with air. October 1, 2016
Rated 4.0 out of 5.0 by works great, but plan well Works great. Just trust that its going to expand like it says and don't spray too much. Its easy to trim excess when hard. Make sure you plan ahead as once the spray solidifies in the straw, thats it, you'll have to buy another. April 26, 2016
Rated 5.0 out of 5.0 by Great Stuff foam sealant This stuff works!! Great product. Does what it says but beware it's very sticky September 6, 2016
Rated 4.0 out of 5.0 by Great gap and filler for spaces Read the directions and made sure to wear rubber glove, eyewear and proper clothing. Make sure it is used as recommended, as it will last longer. Do not use upright. September 6, 2016
Rated 5.0 out of 5.0 by Fill the gaps Such a great product, especially for filling gaps and cracks September 6, 2016
Rated 5.0 out of 5.0 by Foam Sealant This is not good stuff , it is excellent stuff. I filled all the holes between the windows and even bricks , it works like a charm. August 9, 2016
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